Perley b



" y (No Model.)

P.B. RAYMOND.

LUMBER DRYING RACK.

No. 504,279. Patented Ag. 29, 1893.

PERLEY B. RAYMOND, OF INDIANAPOLIS, INDIANA, ASSIGrNOR` TO ADAMS &

WILLIAMSON, OF SAME PLACE.

LUMBER-DRYING RACK.

SPECIFICATION forming part of Letters Patent No. 504,279, dated August29, 1893.

Application tiled February 6, 1892. Serial No. 420,503. (No model.)

To all whom it may concern.'

Be it known that I, PERLEY B. RAYMOND, of Indianapolis, county ofMarion, and State of Indiana, have invented certain new and usefulImprovements in Racks for Drying Lumber; and I do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, in which like numerals refer tolike parts.

My invention relates to improvements in the construction of racks fordrying veneer and thin lumber, the'objeet being t0 hold the 'Sheets orboards in proper position while drylng, so4 that they will not warp,buckle,or

' splitg'and' thusVv injure Ythe sheet, and wilbe understood from thefollowing description.

In the drawings, rFigurel is a front View of my dryingrack, and Fig. 2is a side view of the same. f

The device comprises an out-side skeleton frame formed of uprights (l)and top cross pieces (2) for holding the parts together, and these maybe made as strong or as light as desired. The uprights of this frame areconveniently pierced with holes (3), through which pass pins (6), whichare intended to support or provide rests for the rack proper. This rackconsists of top and bottom cross pieces (5), and running at right anglesto these, and of such depth as may be required, is a series of groovedslides (4.), which are intended to receive the sheets of veneer or thinboards of lumber, and hold them in position duriugthe operation ofdrying. Thus, in Fig. l, these sheets are indicated at (9), and theirupper and lower ends rest in the grooves of the slides (et). In Fig. 2,one of these sheets is shown as partly drawn out, while another behindit is shown shaded and still in position in the rack. The object of thegrooves is not only to hold the sheets in positionA during the operationof drying, but they are made of such depth as to allow a'freecirculation of air between the sheets and around the ends of the stud,and prevent its splitting or its unequal drying at any point. I havefound, however, upon experiment that while a rack constructed in thismanner has many valuable ad- 5o vantages, there yet remained somethingto be done where very large sheets were to be dried,

Vmmanner hereinafter described.

and that something was to provide intermediate supports between the endsof thesheets so as to secure the drying of the sheets uniformlythroughout their entire length and width, and to prevent them fromsplitting and breaking during the operation, and this latter arrangementis the principal object of the present invention. To accomplish thisresult I provide a seriesof intermediate bracing strips or bars (7),supported at or near their centers upon 011e of the pins that passthrough holes in the central upright, as shown in Fig. 2,l thisarrangement providing a support Without fixed relations to the upright,allowing the strips or bars vto be tilted upward or downward in theThese bracing strips or bars (7) extend t0 the depth of the kiln, andtheir ends are joined by cross pieces (8), and are supported upon thepins that pass through the uprights, as shown in Figs. 1 and 2, it beingobserved that the position of the slats (7) is between the strips ofveneer. Consequently they alternate with the grooves in the upperandlower cross bars (5) of the rack itself, and these intermediatebracing bars as united at their ends may be tilted easily upon theirsupporting pins when desired. It is intended, of course, that the crosspieces 8 shall be so arranged as not to interfere with the insertion orwithdrawal of the stuff to be dried from the rack grooves, and this isaccomplished by tilting one of the cross pieces 8 upward and the lowerone downward, in the manner shown in the full lines in Fig. 2, and thestrips of veneer (9) may thus be inserted or withdrawn from the rackgrooves without any difliculty. These rack grooves may be made of anysuitable width, ordinarily five-eighths of an inch, to accommodate ahalf dozen sheets of thin veneer, but the spaces between these groovedrack bars are perhaps one and one halt' inches, thus allowing a freecirculation of air all around the ends of the stuinsuring its even andperfect drying. The brace strips (7) and cross pieces 8 having beenthrown up and down in the position shown in Fig. 2, the stud to be driedis inserted in the grooves, and the bracing strips, and cross piecesconnecting their ends which, as vbefore mentioned, really constitute aseries of intermediate racks, are pulled down to the horizontal positionshown in the dotted lines in Fig. 2, and such brace strips extendingbackward through the depth of the kiln, touch and brace the sheets ofveneer at all points, and support them above, below, and also betweenthe ends where they enter the rack grooves, in proper position forsecuring the best results during the operation of drying.

It is becoming common to use larger and still larger sheets of veneer,and without some such arrangement as these intermediate bracing stripsor frames it would be almost:- impossible to satisfactorily dry largesized stuif so as to prevent it from warping, breaking,or splitting, orbecoming injured or curled up during the operation.

The method herein shown of supporting the rack in the framework uponpins, or supporting the intermediate bracing strips, may be varied ifnecessary, but the principle will be substantially the saine howeverthey are supported or braced, and I do not intend to limit myself to theexact construction herein shown.

What I claim as my invention, and desire t'o. secure by Letters Patent,is the following:

l. In a rack for holding veneers or thin lumber while being dried, amovable bracing frame composed of cross pieces and a series ofconnecting strips rigidly secured'thereto sufficiently close together tosupport and brace the strips of lumber placed between them,substantially as shown and described.

2. A rack for holding veneers or thin lumber while being dried,consisting of a frame work, a movable bracing frame composed of crosspieces and a series of connecting strips rigidly secured theretosufficiently close together to support and brace the strips of lumberplaced between them, and means of supporting the bracing frame in theframework, substantially as shown and described.

3. In a rack for holding veneers or thin lumber while being dried, aseries of strips passing through such rack, whereby the sheets will beso held and supported laterally as to prevent warping or buckling duringthe process of drying, such strips having a central bearing, and theirends attached to crosspieces, whereby such cross pieces and the stripsmay be thrown up or down ont of the way during the insertion or removalof the material to be dried, substantially as shown and described.

et. A rack for holding veneers or thin lumber while being dried,comprising a framework, a pair of cross-bars provided with oppositelyarranged grooves placed parallel to each other and adapted to receivebetween them the sheets of material, a series of bracing strips whoseends are suitably connected together, such strips having an adjustablecentral bearing and passing between the sheets of material to be driedand adapted to hold the same laterally in proper position for drying andto prevent any warping or breaking thereof, substantially as shown anddescribed.

5. A rack for holding veneers or thin lumber while being dried,consisting ot' a framework, arack supported therein provided withadjustable grooved slides at the top and bottom to receive the ends ofthe sheets of material, such grooved slides placed at suitable distancesapart, allowing the free circulation of air about the stui, incombination with one or more intermediate bracing rack `frames formed ofa series of strips whose ends are suitably connected together, suchstrips having an adjustable central bearing and passing between thesheets of material to be dried, and adapted to hold the same laterallyin proper position for drying, and to prevent any warping or breakingthereof, substantially as shown and described.

6. A rack for holding veneersor other thin lumber while being dried,comprising a framework, racks supported therein, grooves form ed at theupper and lower ends of such racks to receive the ends of the sheets ofmaterial to be dried, bracing strips for supporting the materiallaterallybetween the ends and having a central bearing` for allowing theends to be'thrown up or down during the in ertion or removal ofv thematerial from"tlc rack grooves, snbstan tially as shown anddcscriibodf,

7. A rack for holdingveneersforother thinI lumber/while being dried,`ccmsistng gofat. f

framework, adjustable racksgwithfgrooved guidesarrangedinpairsparallel.toeaclrothcrl.

in a horizontal position, andwith the grooved faces toward each other,in combination with bracing strips having an adjustable central bearingand passing through the rack frame and between the sheets of material tobe dried, the ends of such strips connected to and supported by cross`pieces, such cross pieces adj ustably supported from the framework,whereby the material to be dri-ed will be prevented from warping,buckling, or breaking, substantially as shown and described.

8. A rack for holding veneers or other thin lumber in place while beingdried, consisting of a framework, a series of grooved bars adj ustablevertically and adapted to receive the ends of the sheets of material tobe dried, in combination with a series of cross strips between suchgrooved bars having a central bearing and connected atth'e` ends tocross pieces, such cross pieces adjustably supported upon the framework,whereby the sheets of material to be dried may be prevented from warpingor buckling, substantially as shown and described. A

In witness whereof I have hereunto set my han-d this 3d day of February,1892.

PERLEY B. RAYMOND.

fitnesses z n. D'. NEALY', M. D. WILLIAMSON.

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